7 files changed, 195 insertions, 0 deletions
diff --git a/keyboards/handwired/uthol/rev3/chconf.h b/keyboards/handwired/uthol/rev3/chconf.h
new file mode 100644
index 0000000000..e4147c75b1
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/chconf.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2022 Uthol
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define CH_CFG_ST_FREQUENCY 10000
+
+#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
+
+#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
+
+#define CH_CFG_FACTORY_SEMAPHORES TRUE
+
+#define CH_CFG_FACTORY_MAILBOXES TRUE
+
+#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
+
+#define CH_CFG_FACTORY_PIPES TRUE
+
+#include_next <chconf.h>
diff --git a/keyboards/handwired/uthol/rev3/config.h b/keyboards/handwired/uthol/rev3/config.h
new file mode 100644
index 0000000000..47f079e612
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/config.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2022 Uthol
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+#define DEVICE_VER 0x0003
+#define PRODUCT_ID 0x67F3
+#define PRODUCT UtholThree
+
+/* key matrix size */
+// A11 and A12 dont work. They are reserved for USB. B2 is reserved for BOOT1
+#define MATRIX_COL_PINS \
+    { B1, B10, B9, B8, B5, B4, B3, A15, B15, B14, B13, B12 }
+#define MATRIX_ROW_PINS \
+    { A4, A3, A2, A1, A0 }
+
+#define UNUSED_PINS
+
+// Encoder config
+#define ENCODERS_PAD_A \
+    { C15 }
+#define ENCODERS_PAD_B \
+    { C14 }
+#define ENCODER_RESOLUTION 2
+
+// OLED config
+#define OLED_DISPLAY_128X64
+#define OLED_DISPLAY_WIDTH 128
+#define OLED_DISPLAY_HEIGHT 64
+#define OLED_UPDATE_INTERVAL 0
+#define OLED_BRIGHTNESS 255
+#define OLED_DISPLAY_ADDRESS 0x3C
+#define OLED_RESET -1
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+#define TAPPING_TERM 500
+
+/* disable these deprecated features by default */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
+
+// RGB Stuff
+#define RGB_DI_PIN B0
+#define RGBLED_NUM 39
+#define RGBLIGHT_ANIMATIONS
+#define RGBLIGHT_DEFAULT_HUE 201
diff --git a/keyboards/handwired/uthol/rev3/halconf.h b/keyboards/handwired/uthol/rev3/halconf.h
new file mode 100644
index 0000000000..47e02bc102
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/halconf.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2022 Uthol
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#define HAL_USE_PWM TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/handwired/uthol/rev3/mcuconf.h b/keyboards/handwired/uthol/rev3/mcuconf.h
new file mode 100644
index 0000000000..24fb0ef3a5
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/mcuconf.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2022 Uthol
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include_next "mcuconf.h"
+
+#undef STM32_I2C_USE_I2C1
+#define STM32_I2C_USE_I2C1 TRUE
+
+#undef STM32_PWM_USE_TIM5
+#define STM32_PWM_USE_TIM5 TRUE
diff --git a/keyboards/handwired/uthol/rev3/readme.md b/keyboards/handwired/uthol/rev3/readme.md
new file mode 100644
index 0000000000..6b6897ef44
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/readme.md
@@ -0,0 +1,4 @@
+Uthol
+===
+
+Rev 3 - Blackpill
diff --git a/keyboards/handwired/uthol/rev3/rev3.c b/keyboards/handwired/uthol/rev3/rev3.c
new file mode 100644
index 0000000000..2ababdfbe8
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/rev3.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2022 Uthol
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+void board_init(void) { setPinInputHigh(B9); }
diff --git a/keyboards/handwired/uthol/rev3/rules.mk b/keyboards/handwired/uthol/rev3/rules.mk
new file mode 100644
index 0000000000..b64e4ec8d1
--- /dev/null
+++ b/keyboards/handwired/uthol/rev3/rules.mk
@@ -0,0 +1,19 @@
+# MCU name
+MCU = STM32F401
+
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes
+NKRO_ENABLE = yes
+KEYBOARD_SHARED_EP = yes
+OLED_ENABLE = yes
+OLED_DRIVER = SSD1306
+WPM_ENABLE = yes
+EXTRAKEY_ENABLE = yes
+ENCODER_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+RGBLIGHT_DRIVER = WS2812